Control Valve Trim Design

Standards Council of Canada

If you are interested in engineering design of control valve trims for reducing fluid kinetic energy, and therefore proper energy management in process piping and instrument systems, please join us.

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Effective flow area vs physical flow area of an orifice plate

Have you ever noticed that when a flow goes through an orifice plate, the fluid stream converges downstream of the orifice hole? i.e. the effective flow area (downstream) is smaller than the physical flow area (upstream).

Question: How to calculate that effective flow area? (Gerald)

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Control Valve Trim Design

Effective flow area vs physical flow area of an orifice plate

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